Galvanic battery



Wfnesses.

(No Model.)

W. BURNLEY. GALVANIG BATTERY.

No. 419,683. Patented Jan.21,1890.

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UNITED STATES PATENT OFFICE.

WILLIAM BU NLEYf on NORTH EAsT, PENNSYLVANIA, ASSIGNOR on Two THIRDS'ro, oI-I RLEs A. HITOHCOOK, OF sAME PLAoE, AND SAMUEL A. DAvENPoR'noERIE, PENNSYLVANIA.

GAULVANIC BATTERY."

SPECIFICATION forming part of Letters Patent No. 419,633, dated January21, 1890.

Application filed May 26, 1889- Serial No. 312,150. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM BURNLEY, a citizen of the United States,residing at North East, in the county of Erie and State of Pennsylvania,have invented certain new and useful Improvements in Galvanic Batteries;and I do hereby declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart TO to which it appertains to make and use the same,reference beinghad to the accompanying drawings, and to the letters of reference markedthereon, forming part of this specification. I 5 My invention consistsin the improvements in galvanic batteries hereinafter set forth andexplained, and illustrated in the accompanying drawings, in which--Figure 1 is a vertical central section of my improved battery, thecarbon electrode thereof being shown in elevation. Fig. 2 is atransverse section of the same on the line or w in Fig. 1.

In the construction of my improved battery 2 5 shown, A is a zinccylinder or cup provided with a clamping-screw B, for connecting anelectrical conductor therewith, and O a carbon electrode provided with abinding-screw D, for connecting an electrical conductor therewith, thezinc cylinder or cup A forming one battery-electrode and thecarbon O theother. The zinc cylinder or cup A, I line with an exciting agent E,consisting, preferably, of the following ingredients, viz: sal-ammoniac,

3 5 one part; chloride of zinc, one part; plaster, three parts, andwater, two parts, to which I add one part of an oxide, sulphuret, orother suitable compound of antimony; or, in lieu of an oxide, sulphuret,or other compound of antimony, I use seven-eighths of one part of acom)minute d vegetable material, (preferably flour.

In preparing the exciting agent E, I mix the materials describedtogether, they then 5 forming a semi-liquid, which is poured into thecup or cylinder A around a plunger temporarily inserted centrally in thecup A, where the exciting agent rapidly becomes a semisolid. Thetemporary plunger being then removed, a carbon C is inserted centrallyin the opening left by the withdrawal of the plunger, and the spacearound the carbon is filled with a compound F, consisting, preferably,of the following ingredients: sal-ammoniac, one part; chloride of zinc,one part; peroxide of manganese, one part granulated carbon, one part;plaster, three parts, and water two parts, to which I add either onepart of an oxide, sulphuret, or other compound of antimony, or, in lieuthereof, seveneighths of one part of comminuted vegetable material,(preferably flour.) I mix these materials together so as to form asemi-liquid, which is poured in around the carbon C until the spacebetween it and the inside shell of the exciting agent E is filled, wherethe compound F soon becomes a semi-solid. I then seal the top of thezinc cylinder or cup A around the carbon C with bitumen or othersuitable material G, so thatit is substantially air and fluid tight.

I have described certain materials herein as used by me as exciting anddepolarizing agents in my battery. However, I do not ,confine myself tothe particular materials named nor to the exact proportions thereofused; nor do I limit myself to any particular kinds of zinc or positiveand carbon or negative electrodes, as the important feature of myinvention is that of interposing between the positive and negativeelectrodes of a galvanic battery two distinct layers of excitingcomposition in a semi-solid or plastic state, the one next to andcontacting with the carbon or negative electrode having intermixedtherewith depolarizing agents, and the one next to andicontacting withthe zinc or positive electrode not embodying depolarizing agents in itscomposition, my invention relating rather to the particular constructionof the battery than to the particular compounds constituting or embodiedin the exciting and depolarizing agents or the kinds of electrodes used,as I can utilize any of the known galvanic exciting and depolarizing 9;agents and electrodes in my construction; therefore WVhat I claim asnew, and desire to secure by Letters Patent of the United States, is

1. The combination, in a galvanic battery, :00

layer-next to and contacting with the positive f electrode not havingany depolarizing agents intermixed therewith, substantially as setforth.

2. The combination, in a galvanic battery,

of a zinc electrode and a carbon electrode,

with a semi-solid exciting agent arranged in two layers and fillingthespace between the zinc and carbon electrodes, the layer-next to andcontacting with the carbon electrode being provided with depolarizingagents, and

the layer next to and contacting with the ;zincelectrode being withoutsuch depolarizging agents, substantially as set forth.

In testimony whereof I'affix my signature in presence of two witnesses.

WILLIAM BURNLEY.

Witnesses:

L. J ACKSON, I J. C. STURGEON.

